Design and develop a car that is capable of traveling across flat surfaces quickly, but can also negotiate a steep ramp. Note: The WeDo version of the car remains tethered to the computer via the USB cable and therefore cannot travel very far. Tip 1: What gear train yields...

Design and construct a tractor that is capable of pulling a heavy load across a floor. Tip #1: Think about the system of gears that would produce the greatest amount of torque. Resources Lesson plan: Tractor Pull – RCX + ROBOLAB (PDF)